As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT BLEED LIGHT ON OVERHEAD PANEL ILLUMINATED BRIEFLY IN FLIGHT. INTERROGATED M-129 BLEED AIR SUPPLY MODULE AND RESET ACOMPLISHED LT ENG RUN AND BLEED AIR CHECK PER AMM 36-11-00 BITE TEST OF M-129 AIR SUPPLY MOD SHOWS NO FAULTS NO SUBSEQUENT BLEED OFF LIGHTS OR EICAS MSG NOTED.